发明名称 |
Portable therapeutic apparatus having patient responsive feedback means |
摘要 |
A portable therapeutic instrument includes a microphone to be secured to a patient's throat for monitoring voice level or to a patient's nose for monitoring nasal sounds. An input amplifier includes an automatic gain circuit which essentially flattens the gain curve. An adjustable level detector includes a solid state level detector to generate a square wave signal connected to a logic switching circuit for turning a tone oscillator or other stimulus unit wholly on or off. A second similar channel connected to the input amplifier detects total voiced speech. A switch means connects the oscillator to only the first channel to detect speech above a selected level or to both channels to detect speech only below a selected level. The several channels include time delay circuits permitting normal speech attack and decay. The microphone may also be connected to the patient's nose to monitor nasal sounds.
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申请公布号 |
US4143648(A) |
申请公布日期 |
1979.03.13 |
申请号 |
US19770787064 |
申请日期 |
1977.04.13 |
申请人 |
BEHAVIORAL CONTROLS, INC. |
发明人 |
COHEN, RONALD S.;DAWLEY, JAMES M. |
分类号 |
A61F5/58;(IPC1-7):A61B19/00;G09B19/04 |
主分类号 |
A61F5/58 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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